baber/WOPTO huggingface dataset:
Patent GB-1148174-A (GB)
Title: Photographic sheet material for diffusion transfer
IPC: G03C8/28
Filed: 1966-04-12
Abstract: 1,148,174. Receiving sheet for silver salt diffusion transfer. EASTMAN KODAK CO. April 12, 1966 [April 12, 1965], No.16040/66. Heading G2C. A receiving sheet for the silver salt diffusion transfer process comprises a non-light-sensitive photographic layer containing development nuclei or a substance capable of forming development nuclei with dissolved silver salts, carried by a polyolefin coated paper sheet in which the polyolefin coating contains a white pigment e. g. TiO 2  and an optical brightening agent and having a moisture vapour transmission rate less than 0À5 gm/100 sq. ins. /24 hrs. Development nuclei listed include complex salts of heavy metals with thioacetamide, dithiooxamide and dithiobuiret. The polyolefin coating may be flame treated, oxidized or subjected to electron bombardment or U. V. irradiation to produce a hydrophilic surface or given a glassy or matte surface. The brightener may be 4À4<SP>1</SP>-bis benzoxazol -2-yl) stilbene, the compounds of formula and n or the compounds of Specifications 786,234 and 1,072,914.
Patent GB-566637-A (GB)
Title: Improvements in filing devices for card indexes and the like
IPC: B42F17/00
Filed: 1943-09-30
Abstract: 566,637. Filing papers. JEFFERSON, SMURFIT, & SONS, Ltd. Sept. 30, 1943, No. 16042. Convention date, Dec. 4, 1942. [Class 146 (i)] A rack for containing index cards &c. consists of a series of separate pockets formed from foldable units and loosely linked together. Each unit comprises a stiff backing-sheet 1, Fig. 1, having a transverse strip 3 secured thereto at.its ends, and a flexible apron 2 attached to one edge, the apron having fold lines 5, 6. The apron of one unit C, Figs. 5 and 6, is passed down between the backing-sheet and transverse strip of the preceding unit B, and is then turned up behind the backing-sheet of that unit. The folded apron thus forms a pocket to receive an index card. The backing- sheet is allowed to hang down, so as to present its transverse strip 3 in position to receive the apron of the next following unit. The series of units may be suspended by means of the first unit A, Fig. 5, which has its apron 2 attached to a fixed supporting-member 8. The mouths of the pockets may be at successively lower levels, as shown, or all at the same level.
Patent GB-744049-A (GB)
Title: Revivification of poisoned metallic catalysts
IPC: B01J23/90
Filed: 1952-06-27
Abstract: Catalysts containing metallic platinum, palladium, rhodium, iridium, ruthenium, osmium, nickel, cobalt, copper, or iron, which have been used in a liquid phase hydrogenation, dehydrogenation, or reduction process and have become poisoned by compounds of sulphur, selenium, tellurium, phosphorus, arsenic, or antimony or by sulphur or phosphorus in the free state, are revived by treatment with a liquid in which the poison is soluble and which does not attach chemically either the poison or the catalyst.  The process may also be used for the revivification of metallic nickel, cobalt, copper, or iron catalysts which have become poisoned in gas phase hydrogenation, dehydrogenation, or reduction processes.  The liquid preferably consists of or contains a substance having an ethylenic, acetylenic, or benzenoid bond, a carbonyl group, or an unsaturated bond between two nitrogen atoms or between carbon, and nitrogen.  Water, alcohol, acetic acid, cyclohexene, benzene and acetone, are specified.  A series of treatments with different liquids may be given.  In examples (1) platinum black poisoned with thiophen is treated first with acetic acid and then with acetic acid containing 10 per cent cyclohexene (2) platinum black poisoned with zinc ions is treated with water (3) nickel poisoned with thiophen is treated with water, using four changes of liquid (4) platinum black poisoned with dimethylphenyl-arsine is treated three times with cyclohexene dissolved in acetic acid (5) platinum black poisoned with thionaphthen is treated twice with a 10 per cent solution of acetone in acetic acid.  Specifications 437,659, 644,239, and 692,300 are referred to.
Patent GB-1113119-A (GB)
Title: Method of the manufacture of powdery synthetic linear polyamides
IPC: C08G69/48
Filed: 1966-04-13
Abstract: Polyamide powders are made by adding a synthetic linear polyamide to an aqueous solution of a lactam containing no aromatic ring and heating the mixture while stirring under pressure at a temperature lower than the polyamide melting point but at a temperature higher than the softening point of the polyamide in water.  The mixture is stirred to form an emulsion or dispersion from which the powdery polyamide may be separated on cooling.  The "softening point" referred to is not the normal polymer softening point but is that temperature at which the polymer begins to flow in an aqueous solution of lactam and differs for the several polyamides exemplified. Suitable lactams are: g  - butanolactam, d -pentanolactam, e -caprolactam, #x-heptanolactam, c -octanolactam, #q-nonanolactam, o -decanolactam, o -undecanolactam, o -dodecanolactam or chlorine or vinyl-substituted derivatives of the above lactams. The lactam solution may contain from 10-95% by weight of lactam. The quantity of linear polyamide added may be from 1 to 30% by weight based on the aqueous lactam solution.  Polyamides exemplified include Nylon 6; Nylon 6, 6; Nylon 6, 10; Nylon 11; and Nylon 12.
Patent GB-954796-A (GB)
Title: Improvements in and relating to copper-beryllium alloys
Inventor: SCHOLEFIELD HARRY HOUCHEN
IPC: C22C9/00
Filed: 1959-05-06
Abstract: Copper-beryllium alloys contain in percentage by weight <TABS:0954796/C3/1> The alloy may be prepared by melting the constituents together under a charcoal cover, and subsequently degassing by nitrogen, carbon monoxide or carbon dioxide, whereby finely dispersed nitrides or carbides are produced which have a grain-refining action.  Use of boron to replace zirconium is mentioned. According to the Provisional Specification the alloy may be made by powder metallurgical methods.
Patent GB-1522873-A (GB)
Title: Method of operating spark ignition internal combustion engine and an engine carrying out the method
IPC: F02B19/08
Filed: 1976-04-22
Abstract: 1522873 IC engine burning rich air-fuel mixture; exhaust gas recirculation NISSAN MOTOR CO Ltd 22 April 1976 [19 May 1975] 16303/76 Heading F1B An I.C. engine 2 is operated with an air-fuel mixture richer than 18 to I and comprises a main 14 and an auxiliary combustion chamber 16 communicating with each other through a restricted passage 18, wherein air-fuel mixture is supplied only to the main combustion chamber (e.g. from a carburetter 22) and wherein recirculated exhaust. gas is supplied by a duct 34 to the main combustion chamber. During the compression stroke air-fuel mixture passes through the passage 18 into the auxiliary combustion chamber 16 to induce turbulence wherein it is ignited by a single sparking plug 20 so that the flaming combustion gases are ejected through the passage 18 into the remaining mixture in the main combustion chamber 14 which remaining mixture becomes turbulent and ignites. The exhaust gas recirculation rate is controlled by a valve 36 operated according to induction pipe vacuum, venturi vacuum or exhaust gas-pressure. The exhaust gases pass into a thermal reactor 32 or an oxidation catalyst for afterburning, with, if necessary, the addition of secondary air.
Patent GB-164320-A (GB)
Abstract: 164,320. Jauch & Schmid. June 3, 1920, [Convention date]. Winding - apparatus for winding the clockwork of a workmens' time recorder bv the movement of the operating lever comprises a pawl 20 connected to the operating lever, a ratchet wheel 21 connected to the barrel spindle 29 of the clockwork, and a differential mechanism for effecting the engagement and disengagement of the pawl with the ratchet wheel when the spring is partially unwound or is fully wound. The spring barrel 1, Fig. 1, is provided with a toothed wheel 2 which through a pinion 3 gears with a similar wheel 4 mounted on a sleeve 5 on a spindle 7. This sleeve is provided with a bevel wheel 6, Fig. 3, at its other end which forms with a similar wheel 11 the driving members of a differential gear 6, 11, 12. The bevel wheel 11 is secured to a toothed wheel 10 gearing with a pinion 26 on the ratchet wheel 21 and with a wheel 28 on the barrel spindle 29. The bevel wheel 12 is mounted on a pin 13 rotatable on the sleeve 5 and attached to a cam-disc 8 having a projection 14 adapted to engage a pin 15 on a rocking lever 16 slotted at its lower end to engage a pin on a projecting arm on the pawl 20 and thereby move the pawl to its operative position with respect to the ratchet wheel 21. To the cam disc is secured a pinion 9 gearing with a toothed wheel 23 provided with a pin 22 adapted to engage the pointed end of an arm 16<1> integral with the lever 16 so as to rock the lever and thereby the pawl 20 to its inoperative position. The rocking movement of the lever 16 is limited by stops 19 and is held in one or other of its extreme positions by relatively movable links 18, 18<1> and a spring 17. The wheel 4 is arranged to rotate once in twenty-four hours and the wheel 23 once in fourteen days. A pin 31, Fig. 5, on the wheel 23 works in a slot 32 in the framework which slot occupies six-sevenths of a revolution and arrests the pin 31 so as to stop the clock after twelve days providing the operating lever has not been actuated during that period. The clock may be wound up by repeated depressions of the operating lever.
Patent GB-377370-A (GB)
Title: Improvements relating to centrifugal sewage pumps
IPC: F04D29/22
Filed: 1931-06-05
Abstract: 377,370. Centrifugal pumps. HARLAND ENGINEERING CO., Ltd., WARBURTON, F. G., and COLLINSWOOD, H., Alloa, Clackmannanshire. June 5, 1931, No. 16438. [Class 110 (i).] A centrifugal pump for sewage and the like has an impeller 4 with a single passage 5, the inlet 6 of which registers with the inlet eye 7 in the casing plate 2. The walls of the passage 5 extend spirally from the inlet 6 to the outlet 8, and a cavity 10 in the impeller is provided to obtain balance. The passage and cavity may be open on the front end of the impeller, in which case closure is provided by the casing plate 2. Spiral blades 13 on the external face of the impellerserve to balance end thrust. Sealing water is pumped into the boss 15 through the pipe 19, and any of this water which passes the region 18 is forced by the blades 13 into the pump casing. The eye 7 of the casing is connected to a sump provided with one or more intercepting pipe bends of the same general contour as the impeller passage 5.
Patent GB-887080-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J75/00
Filed: 1959-05-13
Abstract: The invention comprises a compound having the formula <FORM:0887080/IV (b)/1> wherein R is an aliphatic hydrocarbon radical containing from 1-6 carbon atoms inclusive, R111 is a -OH, b -OH or Keto; and wherein "alkyl" contains from 1-4 carbon atoms inclusive, the corresponding 4,5-dihydro compounds, the corresponding D 1,4 compounds, wherein R and R111 are as defined above and a process for producing 4,17a -dialkyl-11-oxygenated testosterones by (a) reacting the 3-enamine of a 17a -alkyl-11-hydroxy-testosterone having the formula <FORM:0887080/IV (b)/2> wherein R is as defined above, R1 a -OH or b -OH, n and n1 are 1 or 2, with an alkylating agent to produce the corresponding 4-alkyl-3-enamine; (b) hydrolysing the said 4-alkyl-3-enamine to produce the corresponding 4,17a -dialkyl-11-hydroxytestosterone and (c), if desired, oxidising the 11-hydroxy compound thus produced to give the corresponding 4,17a -dialkyl-11-ketotestosterone.  Subsequently the 4,17a -dialkyl- 11-oxygenated testosterone may be hydrogenated to produce the corresponding 4, 17a  - dialkyl - 11 - oxygenated - androstan - 3 - one and epimerised to obtain the corresponding 4a -epimer. Alternatively, the 4,17a -dialkyl-11-oxygenated testosterone may be dehydrogenated to form a D 1,4 compound, e.g. with selenium dioxide or by microbiological dehydrogenation. 4, 17a  - Dialkyl - 11, 17b  - dihydroxyandrostan - 3 - one may be reduced, e.g. with lithium aluminium hydride to form the corresponding 3-hydroxy compound which may be esterified. Illustrative products of the invention are 4,17a -dimethyl-11a -hydroxytestosterone, 4,17a -dimethyl-11-ketotestosterone, 4b ,17a -dimethyl-11b ,17b -dihydroxyandrostan - 3 - one, 4a , 17a  - dimethyl - 11b , 17b  - dihydroxyandrostan-3-one, 4b ,17a -dimethyl-17b -hydroxyandrostane-3,11-dione, 4a ,17a -dimethyl-17b -hydroxyandrostane-3,11-dione, 1-dehydro-4,-17a -dimethyl-11b -hydroxytestosterone, and 1-dehydro - 4, 17a  - dimethyl - 11 - ketotestosterone.  Specifications 724,094, 740,568 and 788,695 are referred to.ALSO:Pharmaceutical compositions comprise a compound of the formula <FORM:0887080/VI/1> wherein R is an aliphatic radical containing from 1-6 carbon atoms inclusive; R111 is a -OH, b -OH or keto; and wherein "alkyl" contains from 1-4 carbon atoms, inclusive, the corresponding 4,5-dihydro compounds or the corresponding D 1,4-compounds and a pharmaceutical diluent.  They are administered orally or parenterally as tablets, powders, pills, capsules, solutions, emulsions, suspensions, syrups or elexirs. Specifications 724,094, 740,568 and 788,695 are referred to.
Patent GB-400333-A (GB)
Title: A gravity compensating flywheel
IPC: F03G7/10
Filed: 1932-06-11
Abstract: 400,333. Self-driving machines. McNAMARA, J. F., Avondale, Finnart Road, Greenock. June 11, 1932, No. 16524. [Class 10.] A " self-driving " machine comprises a wheel rotatable in a vertical plane and carrying weights W, which are movable in a radial direction by screwed rods T carrying pinions or friction wheels P. On passing from one side to the other of the vertical diameter the pinions engage fixed sectors S, S<1> by which they are rotated, so causing the screwed rods T to move the weights on one side of the wheel to the outer, and those on the other side to the inner, position. Reference has been directed by the Comptroller to Specification 11304/11, [Class 10, Animalpower engines &c.].
Patent GB-111325-A (GB)
Title: A Movable Lining for Men's Waistcoats, Jackets, and Overcoats, and for Corresponding Articles of Women's Dress.
Inventor: CAMPBELL JAMES ANDERSON
IPC: A41D27/04
Filed: 1916-11-18
Abstract: 111,325. Campbell, J. A. Nov. 18, 1916. Linings for the fronts of men's waistcoats, jackets, and overcoats, and for corresponding articles of women's and children's wear are sewn only along one edge so that they can be made to cover the body in cold weather or drawn backwards, forwards, upwards, or downwards when not required. In the example shown, the lining is stitched to the waistcoat along the under arm seam, and a series of cords or the like A, Fig. 1, running horizontally from the under arm seam to within an inch of the buttonholes engage rings sewn to the inside of the lining, while other cords A, Fig. 2, attached to the outside of the lining run through rings B, are secured on the outside of the lining, and are connected to a draw-cord C whereby the lining can be drawn back under the arm. The lining is fastened at its outer edges by buttons or other detachable fastenings
Patent GB-314521-A (GB)
Title: Improvements in or relating to the production of compound yarns or threads
IPC: D02G3/36
Filed: 1929-05-30
Abstract: 314,521. Rasch, M. O. June 30, 1928, [Convention date]. Yarns or threads; yarns, treating with liquids. - In the manufacture of compound yarns or threads a core yarn or thread 1 and a first covering yarn or thread 2 of opposite twist are twisted together in either direction and the compound yarn produced is doubled with a second covering yarn or thread by twisting them together in a direction opposite to that of the twist of the second covering yarn or thread so that the latter untwists to such an extent that in the finished compound yarn or thread the core yarn or thread is completely covered by the second or by both covering yarns or threads. The wet or dry method of doubling may be employed and the component yarns may be treated before, during, or after doubling with a solution of soap, such as Marseilles soap, an oil, such as olive oil, and a fat solvent, such as carbon tetrachloride, to ensure uniformity in the subsequent dyeing operation.
Patent GB-1294276-A (GB)
Title: Cross-bottom or block-bottom bags of heat-sealable material
Inventor: ERK AMIR
IPC: B65D30/18
Filed: 1971-05-24
Abstract: 1294276 Making block-bottomed or crossbottomed bags FISCHER & KRECKE KG 24 May 1971 [29 May 1970] 16705/71 Heading B5D [Also in Division B8] A block-bottomed or cross-bottomed bag has an insulating material ply inserted into the bottom whilst this is open to enable it to be closed by heat sealing. As shown, the insulating material ply 6 has narrower extensions 6a and is inserted into the open bottom of a blockbottomed bag so that its edges underlie the edges of the corner tucks 4, 5 and its extensions 6a overlap the side flaps 2, 3. The ply 6 has adhesive strips 9, 10 by which it is attached to the corner tucks 4, 5. The side flaps 2, 3 are then folded over along lines 11, 12 and are heat sealed to the corner tucks 4, 5 along weld seams (13, 14) above the adhesive strips 9, 10 and to each other along a weld seam (15) perpendicular to these. In a modification, the ply 6 may have a layer of heat-sealable material on one surface by means of which it is joined to corner tucks 4, 5 as the weld seams (13, 14) are formed. The ply 6 may be of stiff paper or cardboard.
Patent GB-1215975-A (GB)
Title: Bistable trigger circuit
IPC: H03K3/037
Filed: 1968-04-08
Abstract: 1,215,975. Bi-stable circuits. PRECISA A.G. RECHENMASCHINENFABRIK. 8 April, 1968 [7 April, 1967], No. 16717/68. Heading H3T. A bi-stable circuit comprises two integrated inverting logic gates 11, 11<SP>1</SP> each having its respective first input ez, ez<SP>1</SP>, and the output of the other gate cross-connected and having a second input e1, e1<SP>1</SP> connected to a first resistor 14, a control voltage V1 via a second resistor 12 only and a pulse generator 17 via a capacitor 13 only. Switches 16, 16<SP>1</SP> enable alternate control voltages to be selected for the respective gates. Fig. la (not shown) indicates the behaviour of the gates for different combinations of switch positions. Alternative biasing inputs may be obtained by feedback from the output of the same NAND gate on both sides (Fig. 3, not shown) or on one side only (Fig. 4; not shown), with a common pulse generator for both sides. This arrangement acts as a frequency divider. Fig. 5 (not shown) uses NAND gates with three inputs so that there are two inputs available for switching and biasing purposes. NOR gates may be used instead of the NAND gates described.
Patent GB-974719-A (GB)
Title: Improvements in or relating to steroid compounds and therapeutic compositions containing steroid compounds
Inventor: ERCOLI ALBERTO
IPC: C07J7/00
Filed: 1963-04-29
Abstract: The invention comprises a compound of the formula: <FORM:0974719/C1/1> in which X represents hydrogen or a hydroxy or acetoxy group and R represents an alkyl or cycloalkyl containing 4-6 carbon atoms inclusive, pharmaceutical compositions thereof and a process for the preparation thereof by reacting the corresponding 3-ethyl enol ether with an excess of an alcohol of the formula ROH in the presence of a catalytic amount of an acid catalyst and in solution of a non-polar organic solvent.  Said pharmaceutical compositions, having progestational activity, are administered orally in a liquid or solid carrier, e.g. in capsules or in drop form.
Patent GB-530319-A (GB)
Title: Improvements in and relating to wide-band amplifiers
IPC: H03F1/50
Filed: 1939-06-08
Abstract: 530,319. Valve amplifying circuits; television. THORNTON, A. A. (Philco Radio & Television Corporation). June 8, 1939, No. 16804. [Classes 40 (iii) and 40 (v)] A wide-band amplifier comprises a valve with two output electrodes to which load impedances are connected such that one provides a wideband output and the other a narrow-band overlapping the wide band, the arrangement being particularly adapted for the separation of synchronizing from picture signals in a television receiver. As shown the valve 2 is a pentode, with the picture signal output taken from its anode, and the synchronizing signals from its screengrid. The anode load comprises a resistance 3 and an inductance 4 which resonates with the anode capacity towards the upper limit of the required video frequency range. The screen-grid load comprises a larger resistance 5 and a larger inductance 6 which resonates with the screengrid capacity at a much lower frequency. The arrangement is such that the video frequency response in the anode circuit is reduced at low frequencies by the robbing action of the screen grid. The screen-grid voltage is supplied from the anode voltage source through a filter 7, 8 which eliminates low frequency ripple in the supply.
Patent GB-108260-A (GB)
Title: Improvements in Machines for Cutting or Comminuting Coffee and similar Materials.
Inventor: OSIUS FREDERICK JACOB
IPC: A47J42/36
Filed: 1916-11-23
Abstract: 108,260. Osius, F. J. Nov. 23, 1916. Mills and apparatus -A mill for cutting as distinguished from grinding coffee &c is formed with a fly-wheel disk 18, driven by an electric motor, mounted in a closely fitting casing and provided with a cutter blade which moves outward under centrifugal action and is drawn in by spring 36. The blade is in the form of a series of projections or teeth forming cutting faces which pass between a similar series of cutting projections or teeth 39 mounted in the neck of the hopper &c. provided with an adjusting lever 42 by which they can be raised or lowered. The casing is surmounted by a hopper and, has are. ceiving receptacle 11 secured to its lower portion by spring clips 12.
Patent GB-1039824-A (GB)
Title: Ion beam propulsion systems
IPC: F03H1/00
Filed: 1964-04-23
Abstract: 1,039,824. Ion beam space propulsion engine. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. April 23,1964 [May 21, 1963], No. 16817/64. Class F1J. [Also in Group H1] In an ion beam space propulsion engine neutralization is effected by secondary electron emission, the outer part of the beam 28, after being concentrated to a cross-over point or to a region of minimum cross-section 31 by an electrostatic lens system 24, 29, 32 diverges onto a secondary emissive surface 33 within the electrode 32. By adjusting the position of the cross-over the degree of neutralization may be varied. Alternatively a magnetic lens may be used and in modifications the secondary emissive surface may be provided on an outwardly flared portion of the electrode 32 or the electrode 32 may be terminated by a secondary emissive grid of constant or radially variable pitch. A suitable secondary emissive material is tungsten and the ion may be produced from caesium or argon vapour.